- #1
Badgerspin
- 15
- 0
Ok, I've been working this one out for a while, and I just can't seem to get it.
I'm looking for the condition such that x(t)=k (where in our class, K generally equals e^c)
The initial equation is as such:
7t^2(dx/dt)+3x+5=0
I've worked the equation down to two different forms:
x = (-e^((3/7t)-3c)-5)/3
and
x = c*e^(3/7t) - 3/5
For the life of me, I can't figure out what K (or C I suppose) equals in order so that x(t) = k
This is online work, and it only accepts a precise answer for credit.
It's also not letting me enter the variable t as an answer for c (or K), so I'm wondering if there's maybe an error in what was programmed as the correct answer.
I'm sure there's something I'm missing or another way that I need to work the problem. Any help would be appreciated.
I'm looking for the condition such that x(t)=k (where in our class, K generally equals e^c)
The initial equation is as such:
7t^2(dx/dt)+3x+5=0
I've worked the equation down to two different forms:
x = (-e^((3/7t)-3c)-5)/3
and
x = c*e^(3/7t) - 3/5
For the life of me, I can't figure out what K (or C I suppose) equals in order so that x(t) = k
This is online work, and it only accepts a precise answer for credit.
It's also not letting me enter the variable t as an answer for c (or K), so I'm wondering if there's maybe an error in what was programmed as the correct answer.
I'm sure there's something I'm missing or another way that I need to work the problem. Any help would be appreciated.